Nonstop flight route between Boulder, Colorado, United States and St Athan, Wales, United Kingdom:

About this route:

A direct, nonstop flight between Boulder Municipal Airport (WBU), Boulder, Colorado, United States and MoD St Athan (DGX), St Athan, Wales, United Kingdom would travel a Great Circle distance of 4,567 miles (or 7,349 kilometers).

A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between Boulder Municipal Airport and MoD St Athan, the route shown on this map most likely appears curved because of this reason.

Try it at home! Get a globe and tightly lay a string between Boulder Municipal Airport and MoD St Athan. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Boulder Municipal Airport (WBU):

• Because of Boulder Municipal Airport's high elevation of 5,288 feet, planes must typically fly at a faster airspeed in order to takeoff or land at WBU. Combined with a high temperature, this could make WBU a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• In addition to being known as "Boulder Municipal Airport", another name for WBU is "BDU".
• The furthest airport from Boulder Municipal Airport (WBU) is Sir Gaëtan Duval Airport (RRG), which is located 10,881 miles (17,511 kilometers) away in Rodrigues Island, Mauritius.
• The closest airport to Boulder Municipal Airport (WBU) is Rocky Mountain Metropolitan Airport (BJC), which is located only 11 miles (17 kilometers) SSE of WBU.
• Boulder Municipal Airport (WBU) has 2 runways.

Facts about MoD St Athan (DGX):

• RAF St Athan has been used to house a number of army units throughout its life and, in 2003, the 1st Battalion, Welsh Guards moved from Aldershot to St Athan - the first time they have been based in Wales since they were formed in 1915.
• The training to be carried out at St Athan was to be specialist phase 2 and phase 3 engineering courses of the Royal Navy, Army and Royal Air Force.
• Just before 1100 GMT on 11 February 2009, two Grob Tutor aircraft flying out of St Athan were involved in a mid-air collision in which two Air Training Corps cadets and their instructors, both RAF pilots, died.
• The closest airport to MoD St Athan (DGX) is Cardiff Airport (CWL), which is located only 4 miles (6 kilometers) E of DGX.
• MoD St Athan (DGX) currently has only 1 runway.
• In March 2004, however, DARA announced the loss of 550 jobs at St Athan as part of streamlining to make DARA more efficient and better able to compete with the private sector for lucrative aircraft repair contracts, but also because they lost out to a direct RAF bid for a contract to upgrade the air force's fleet of ageing Harrier jump jet aircraft.
• Because of MoD St Athan's relatively low elevation of 163 feet, planes can take off or land at MoD St Athan at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• RAF St Athan was also home for the Royal Air Force Administrative Apprentice Training School.
• The furthest airport from MoD St Athan (DGX) is Dunedin International Airport (DUD), which is located 11,960 miles (19,248 kilometers) away in Dunedin, Otago, New Zealand.